The Big Data computing is one of hot spots of the internet of things and cloud computing. How to compute efficiently on the Big Data is the key of improving performance. By means of distributedcomputing or memory com...
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ISBN:
(纸本)9781509018932
The Big Data computing is one of hot spots of the internet of things and cloud computing. How to compute efficiently on the Big Data is the key of improving performance. By means of distributedcomputing or memory computing, many companies and institutions provide some technologies and produces. But they are invalid in the scene in which there are real-time demands in the low-configure cluster. To deal with the problem, this paper provides a distributedcomputing and memory computing-based effective solution (Objectification Parallel computing, OPC). In the solution, the data can be formatted into object. Then the objects are distributed stored in the computer memories and parallel compute to complete tasks. The OPC is applied to the Electric Asset Quality Supervision Manage System (EAQSMS) of State grid of China, the result shows that with PCs the system is efficiently available, reliable, and flexible expansible.
When several independent organizations, whose missions partially overlap, agree to gather together to collaborate in order to achieve a common goal, the resulting collaboration is often referred to in the literature a...
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ISBN:
(纸本)088986568X
When several independent organizations, whose missions partially overlap, agree to gather together to collaborate in order to achieve a common goal, the resulting collaboration is often referred to in the literature as virtual organization (VO). In this paper we propose a flexible and non-invasive access control infrastructure for VOs that enables member organizations to gain the advantages of the collaboration while preserving their authonomy. The infrastructure is described from the users' point of view and with reference to the European grid project EGEE [1].
It is publicly considered that the next generational Internet technology is gridcomputing, which supports the sharing and coordinated use of diverse resources in dynamic virtual organizations from geographically and ...
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gridcomputing is becoming more and more attractive to provide a convenient uniform platform for coordinating highly distributed and heterogeneous resources and services. gridPPI provides a group of genetic and abstra...
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ISBN:
(纸本)0769526950
gridcomputing is becoming more and more attractive to provide a convenient uniform platform for coordinating highly distributed and heterogeneous resources and services. gridPPI provides a group of genetic and abstract function prototypes which could be used to couple multiple computing services distributed over grid to conquer complex computing problems. To provide the advanced users, such as programmers, a convenient, effective, familiar and convenient way to use and harmony the resources and services in the Chinagrid environment, gridPPI is introduced into Chinagrid Support Platform. In this paper, the WSRF service-oriented implementation and evaluation of the gridPPI on CGSP2 (gridPPI-CGSP2), are discussed in detail. Performance analysis shows that our efforts could provide a flexible and effective programming library in the grid environment.
distributed generation (DG) has received more recognition due to the limitations of conventional power generation. The grid-connected inverter of DG is usually connected with renewable energy sources (RES)s. Here, a p...
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ISBN:
(纸本)9781665421119;9781665421126
distributed generation (DG) has received more recognition due to the limitations of conventional power generation. The grid-connected inverter of DG is usually connected with renewable energy sources (RES)s. Here, a photovoltaic (PV) array is used as a DG source with maximum power point tracking implemented by the P&O algorithm. The role of DG is to supply adequate power to support the grid, which is effectively controlled using the Comprehensive Power Quality Evaluation (CPQE) technique. Here, MATLAB-based simulation of proposed PV-based DG with maximum power extraction algorithm is presented. Simulation analysis of proposed PV-based two-level inverter DG clearly depicts satisfactory behavior.
grid systems at different levels have already been constructed around the world to provide users an easy way of accessing/integrating distributedcomputing, data and other resources. Portal layer is on the top of typi...
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ISBN:
(纸本)0769526950
grid systems at different levels have already been constructed around the world to provide users an easy way of accessing/integrating distributedcomputing, data and other resources. Portal layer is on the top of typical three layers in grid system and provides presentation interface to the end-users. Portlets as executing components in portal layer usually access a specific grid middleware rather than multi grid middlewares. A new grid system is implemented in this paper. It follows typical three layer structure of grid system. By using UDDI registry, grid Portlets in the portal layer can select services interfaces and find out suitable grid middleware. Abstraction and Business Logics which are Java CoG-based in service layer will map to suitable Globus Toolkit middlewares. The end-users can use the grid Portlets to access GT2, GT3 or GT4 middleware.
gridcomputing has emerged as an important new field and attracted more and more attentions in the research community recently. This paper addresses the nature of gridcomputing, the grid attributes, and the character...
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ISBN:
(纸本)1932415262
gridcomputing has emerged as an important new field and attracted more and more attentions in the research community recently. This paper addresses the nature of gridcomputing, the grid attributes, and the characteristics that distinguish gridcomputing from conventional distributedcomputing. Analysis shows different applications should be built on different infrastructures. The paper concludes with a brief discussion on the factors that are essential for gridcomputing to be successful.
grid application is being boosted in last years by the growing demand of low cost computing resources and idle computing capacity in collaborative research and development environments, and widely applied to not only ...
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ISBN:
(纸本)0769522165
grid application is being boosted in last years by the growing demand of low cost computing resources and idle computing capacity in collaborative research and development environments, and widely applied to not only scientific computing but business field However, the research on transaction coordination of grid services has achieved less progress. In this paper, we describe a framework for implementing transactions on grid services, which can coordinate atomic transaction and business transaction, and give a brief introduction to the technical concepts of the distributed transaction model designed for grid services. Then, we focus on specific transaction coordination that can apply to model designed for grid services.
SuperB is an international enterprise aiming at the construction of a very high luminosity asymmetric e+e- flavor factory. SuperB will be a partner, together with the LHC and eventually the ILC, in searching for new p...
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ISBN:
(纸本)9781424439614
SuperB is an international enterprise aiming at the construction of a very high luminosity asymmetric e+e- flavor factory. SuperB will be a partner, together with the LHC and eventually the ILC, in searching for new physics. Since the first steps of detector design, the load of computing issues in terms of Monte Carlo algorithm execution requires the exploitation of resources in a full distributed model. The SuperB choice is to build a grid integrated system identifying both the consolidated and upcoming solutions to accomplish the typical HEP class experiment requirements. The model, moreover, has to be flexible, in order to deal with the rapid technological improvements and the expected long life of the experiment. The in progress design and setup of SuperB distributedcomputing model is presented including the complete discussion of the grid services selected for the prototype.
Topological entropy is a key quantity characterizing the complexity, or the information generation rate, of deterministic dynamical process. It provides the lower bound on the amount of communications for reliable sta...
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ISBN:
(纸本)9781467382892
Topological entropy is a key quantity characterizing the complexity, or the information generation rate, of deterministic dynamical process. It provides the lower bound on the amount of communications for reliable state estimation in cyber physical systems (CPSs). In order to study distributed state estimation in CPSs, product topological entropy, based on product covering and motivated by the theory of communication complexity, is proposed. Three similar definitions of product topological entropy are proposed and compared, which are applied to the evaluation of the communication requirement in distributed system state estimation. Algorithms for numerically and approximately computing the product topological entropy are proposed and then applied in the context of smart grids.
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